DENTAL CROWN BIOMINERALIZATION DURING ITS HISTOGENESIS

Area of Science:

• Dental Histology
• Biomineralization
• Developmental Biology

Background:

• Understanding the biomineralization of permanent dental crowns is crucial for pediatric dentistry.
• The postnatal period is a critical window for tooth development and maturation.

Purpose of the Study:

• To investigate the biomineralization processes of permanent dental crowns during the postnatal period of histogenesis.
• To elucidate the role of the cuticular epithelium in tooth crown development.

Main Methods:

• Microscopic, electron microscopic, and immunohistochemical analyses were employed.
• The study utilized 30 culled puppies aged 30-40 days.

Main Results:

• Postnatal tooth crown maturation begins with cuticular epithelium cells synthesizing a mineralizable organic stroma.
• Taftelin protein is associated with proameloblast differentiation, while enamelin protein triggers secondary enamel biomineralization.
• Layered protein deposition by ameloblasts contributes to S-shaped maturation and strengthening of hard tooth tissues.

Conclusions:

• The cuticular epithelium plays a key role in filtering salivary fluid, facilitating protein deposition and calcium salt infiltration for enamel formation.
• Desmosomal connections in the enamel organ facilitate salivary fluid filtration for enamel trophism.